Neuro speculation

The amygdala is an almond-shaped mass of gray matter deep inside the cerebral cortex that plays a central role in self-control. It helps keep emotional expression in-compliance with culturally accepted norms. When damaged, an individual has difficulty with impulse-control and restraint from inappropriate and aberrant behavior [link]. Over the past decade, research has uncovered a lot more about the amygdala and how it processes signals from our social environment [link].

I have a theory. I believe that some social signals affect the amygdala differently than others. Some elicit greater restraint and vigilance while others offer release from conditioned restraint and vigilance. Neuroscience informs us that when the amygdala is surgically removed, animals show signs of inappropriate affect ..boredom where there should be fear and hypersexual activity where there is no enticement [link]. I predict that if you housed a normal group of animals where they could watch the frenetic activity of the amygdala-impaired group ..they too would show signs of inappropriate affect. Observation alone would induce the same effect as impairment. MRI studies already show heightened activity in response to authority and perceived threat. I believe they would reveal another type of activity in response to collapse of authority and diminished threat. My theory says that the amygdala would then act to release spectators from conditioned inhibition and give license to repressed impulses and sexual aggression.

This may explain the high incident of sexual assault committed by revelers celebrating the downfall of President Mubarak in Egypt [link]. Festivities associated with a break in the social order released a frenzy of predatory sexual behavior in a few that quickly spread to other participants in the crowd. Predatory behavior of this sort has also been observed at soccer matches and in crowds celebrating at the Rose Parade in California. I believe that lowered internal restraints coupled with the lax enforcement of sexual harassment laws in Egypt may have contributed to the chain of events observed. By no mean am I offering excuses for what occurred, I’m only trying to draw a possible connection between real-world events and accounts of aggression reported from the lab.

My heart goes out to the CBS correspondent who fell victim to it.